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some by some.) Step Two: Learn by themselves. (20m) Students: 1. Choose learning aims. 2. Learn on their own. 1) Review the words and target language points in this unit. 2) Make a conversation with all the useful expressions learnt in this unit. 3) Do exercises.( 同步 selfcheck) Teacher: Watch the students and help them whenever necessary. Gather questions. Step Three: Discussion (5m) Talk about the problems together. Step Four: Summary and Test (5m) Step Five: sh